verify/yosupo/data-structure/segment_add_get_min_online.test.cpp

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• Last update: 2025-03-14 23:36:46+07:00
• Problem: https://judge.yosupo.jp/problem/segment_add_get_min

Depends on

• data-structure/convex/dynamic-li-chao-tree.hpp
• template.hpp

Code

#define PROBLEM "https://judge.yosupo.jp/problem/segment_add_get_min"
#include "template.hpp"
#include "data-structure/convex/dynamic-li-chao-tree.hpp"

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    int n,q;
    cin >> n >> q;
    const int X=1e9;
    DynamicLiChaoTree<ll> lct(-X,X);
    while(n--){
        ll l,r,a,b;
        cin >> l >> r >> a >> b;
        lct.insert_range(a,b,l,r-1);
    }
    while(q--){
        int op;
        cin >> op;
        if(op){
            ll x;
            cin >> x;
            ll res=lct.query(x);
            if(res>=lct.INF)cout << "INFINITY\n";
            else cout << res << "\n";
        }else{
            ll l,r,a,b;
            cin >> l >> r >> a >> b;
            lct.insert_range(a,b,l,r-1);
        }
    }
}

#line 1 "verify/yosupo/data-structure/segment_add_get_min_online.test.cpp"
#define PROBLEM "https://judge.yosupo.jp/problem/segment_add_get_min"
#line 2 "template.hpp"
#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

using ll = long long;
using db = long double;
using vi = vector<int>;
using vl = vector<ll>;
using vd = vector<db>;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
using pdd = pair<db,db>;
const int INF=INT_MAX/2;
const int MOD=998244353;
const int MOD2=1000000007;
const ll LINF=LLONG_MAX/2;
const db DINF=numeric_limits<db>::infinity();
const db EPS=1e-9;
const db PI=acos(db(-1));

template<class T>
using ordered_set = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
template<class T>
using ordered_multiset = tree<T,null_type,less_equal<T>,rb_tree_tag,tree_order_statistics_node_update>;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rng64(chrono::steady_clock::now().time_since_epoch().count());
#line 2 "data-structure/convex/dynamic-li-chao-tree.hpp"

/**
 * Author: Teetat T.
 * Date: 2024-06-12
 * Description: Dynamic Li-Chao Tree (minimize).
 */

template<class T>
struct DynamicLiChaoTree{
    static const T INF=numeric_limits<T>::max()/2;
    struct Line{
        T m,c;
        Line(T _m,T _c):m(_m),c(_c){}
        inline T eval(T x)const{return m*x+c;}
    };
    struct Node;
    using Ptr = Node*;
    struct Node{
        Line v;
        Ptr l,r;
        Node():v(0,INF),l(nullptr),r(nullptr){}
        Node(Line _v):v(_v),l(nullptr),r(nullptr){}
    };
    ll lb,ub;
    Ptr root;
    DynamicLiChaoTree(ll _lb,ll _ub):lb(_lb),ub(_ub),root(nullptr){}
    void insert(T l,T r,Ptr &t,Line v){
        if(!t)return void(t=new Node(v));
        T m=l+(r-l)/2;
        if(v.eval(m)<t->v.eval(m))swap(t->v,v);
        if(v.eval(l)<t->v.eval(l))insert(l,m,t->l,v);
        if(v.eval(r)<t->v.eval(r))insert(m+1,r,t->r,v);
    }
    inline void insert(T m,T c){
        insert(lb,ub,root,Line(m,c));
    }
    void insert_range(T l,T r,Ptr &t,T x,T y,Line v){
        if(y<l||r<x)return;
        if(!t)t=new Node();
        if(x<=l&&r<=y)return insert(l,r,t,v);
        T m=l+(r-l)/2;
        insert_range(l,m,t->l,x,y,v);
        insert_range(m+1,r,t->r,x,y,v);
    }
    inline void insert_range(T m,T c,T x,T y){
        insert_range(lb,ub,root,x,y,Line(m,c));
    }
    T query(T l,T r,Ptr t,T x){
        if(!t)return INF;
        T m=l+(r-l)/2;
        if(x<=m)return min(t->v.eval(x),query(l,m,t->l,x));
        return min(t->v.eval(x),query(m+1,r,t->r,x));
    }
    inline T query(T x){
        return query(lb,ub,root,x);
    }
};

#line 4 "verify/yosupo/data-structure/segment_add_get_min_online.test.cpp"

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    int n,q;
    cin >> n >> q;
    const int X=1e9;
    DynamicLiChaoTree<ll> lct(-X,X);
    while(n--){
        ll l,r,a,b;
        cin >> l >> r >> a >> b;
        lct.insert_range(a,b,l,r-1);
    }
    while(q--){
        int op;
        cin >> op;
        if(op){
            ll x;
            cin >> x;
            ll res=lct.query(x);
            if(res>=lct.INF)cout << "INFINITY\n";
            else cout << res << "\n";
        }else{
            ll l,r,a,b;
            cin >> l >> r >> a >> b;
            lct.insert_range(a,b,l,r-1);
        }
    }
}

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